Earlier today, I was experiencing a weird deployment problem using the Jetty plugin with Maven. Some of the dependency JARs appeared to be corrupted. Because of this, my application was throwing the following exceptions. If you see this issue, try deleting the archives and allow maven to re-download the dependencies.

2010-08-27 19:29:12.240:WARN::Failed to read file: C:\Users\jcone\.m2\repository\antlr\antlr\2.7.6\antlr-2.7.6.jar
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
...
2010-08-27 19:29:12.245:WARN::Failed to read file: C:\Users\jcone\.m2\repository\dom4j\dom4j\1.6.1\dom4j-1.6.1.jar
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
...
2010-08-27 19:29:12.248:WARN::Failed to read file: C:\Users\jcone\.m2\repository\javax\transaction\jta\1.1\jta-1.1.jar
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
...